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92 lines
2.5 KiB
Text
92 lines
2.5 KiB
Text
# perfect-debounce
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[![npm version][npm-version-src]][npm-version-href]
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[![npm downloads][npm-downloads-src]][npm-downloads-href]
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[![Github Actions][github-actions-src]][github-actions-href]
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[![Codecov][codecov-src]][codecov-href]
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> An improved debounce function with Promise support.
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- Well tested debounce implementation
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- Native Promise support
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- Avoid duplicate calls while promise is being resolved
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- Configurable `trailing` and `leading` behavior
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## Usage
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Install package:
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```sh
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# npm
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npm install perfect-debounce
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# yarn
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yarn install perfect-debounce
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# pnpm
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pnpm install perfect-debounce
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```
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Import:
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```js
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// ESM
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import { debounce } from 'perfect-debounce'
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// CommonJS
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const { debounce } = require('perfect-debounce')
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```
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Debounce function:
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```js
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const debounced = debounce(async () => {
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// Some heavy stuff
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}, 25)
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```
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When calling `debounced`, it will wait at least for `25ms` as configured before actually calling our function. This helps to avoid multiple calls.
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To avoid initial wait, we can set `leading: true` option. It will cause function to be immediately called if there is no other call:
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```js
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const debounced = debounce(async () => {
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// Some heavy stuff
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}, 25, { leading: true })
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```
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If executing async function takes longer than debounce value, duplicate calls will be still prevented a last call will happen. To disable this behavior, we can set `trailing: false` option:
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```js
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const debounced = debounce(async () => {
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// Some heavy stuff
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}, 25, { trailing: false })
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```
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## 💻 Development
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- Clone this repository
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- Enable [Corepack](https://github.com/nodejs/corepack) using `corepack enable` (use `npm i -g corepack` for Node.js < 16.10)
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- Install dependencies using `pnpm install`
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- Run interactive tests using `pnpm dev`
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## License
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Made with 💛
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Based on [sindresorhus/p-debounce](https://github.com/sindresorhus/p-debounce).
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Published under [MIT License](./LICENSE).
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<!-- Badges -->
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[npm-version-src]: https://img.shields.io/npm/v/perfect-debounce?style=flat-square
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[npm-version-href]: https://npmjs.com/package/perfect-debounce
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[npm-downloads-src]: https://img.shields.io/npm/dm/perfect-debounce?style=flat-square
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[npm-downloads-href]: https://npmjs.com/package/perfect-debounce
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[github-actions-src]: https://img.shields.io/github/workflow/status/unjs/perfect-debounce/ci/main?style=flat-square
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[github-actions-href]: https://github.com/unjs/perfect-debounce/actions?query=workflow%3Aci
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[codecov-src]: https://img.shields.io/codecov/c/gh/unjs/perfect-debounce/main?style=flat-square
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[codecov-href]: https://codecov.io/gh/unjs/perfect-debounce
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